I repaired the chewed wiring with solder and shrink tube. I have two white wires that I and not sure I repaired correctly so I left the wire nuts for now. Can someone tell me exactly what I'm working with here?

 

Some Details:
1989 2.8 Auto. Sat for the last ten years and was mouse damaged in several places. The pics is near the firewall by the transmission dipstick.

 

I’d suggest get a good og harness, swap out what’s bad, you can remove ea wire that you need to replace in the donor harness. I did same, some were bad on my car. Easy fix.

 

See if the car will run with wires disconnected. If something doesn't work that is a clue what was affected.

Or use a wiring diagram to check color codes and location.

OR (my favorite option) check the surrounding area for wires chewed of same color and splice in new wires like you did with the others. Probably easiest/fastest option. Mice dont usually eat the entire wire, just a small section.

 

As Aaron said, look for wire of the same color. Some wires have a different color stripe along the length. A squirrel chewed half the wires in the harness of my 2007
frontier. Took allot of time but by comparing wire colors, I was able to splice them back.

In your picture, the two light colored wires look like they should go together. While the darker beige wires appear to go together.

Good Luck,

Fred

 

I'm specifically unsure about the two white wires, capped with a blue and an orange wire nut. The were chewed thru in the same place and look the same to me. What do the white wires do, does anyone know offhand?

 

Pick up a manual with the elec schematic in

 

From the 1988 service manual it appears to be the EVRV connector.
EVRV - ELECTRONIC VACUUM REGULATOR VALVE - Controls EGR vacuum.



1-EVRV SOLENOID & RELAY

2-THROTTLE BODY

3-MAF SENSOR

4-MAF RELAY

6-MAT SENSOR

7-COIL CONNECTOR

8-DISTRIBUTOR

9-EST CONN.

10-FAN SW.

11-SET TIMING

I2-O2 SENSOR CONN.

13-IAC CONN.

14-TPS CONN.

 

I nailed it. The diagrams did help, but I'm dealing with two white wires. I had them mixed up, and I can say for sure that one of them is for the tach. This is what it looks like now after I switched the wires and soldered and shrink tubed them. Thanks for all the help guys.

 

So, what kind of cat are you looking for?

 

Well done on solving your issue. I did a little more looking through the manual and it appears given your description that one of the wires is for the tach, that the connector wiring that was damaged on your car could well be the remote coil connector wiring shown in these two diagrams from the 1988 service manual.



Makes me wonder why they labeled it incorrectly on the other diagram I posted earlier. Maybe both connectors are in close proximity to each other in the car, although when I checked my cars engine bay I saw no evidence of a EVRV connector.